AFR's bouncing, car bucking
When I'm cruising around 3200rpm at 70kpa the car is surging and driving me nuts. I logged it and my AFR's bounch from 15.5 to 12:1 when I'm in this range. Is this my accel enrichment I need to play with.
Want to post up your datalog and .msq?
When you play the log where it's bouncing around, you can see your accel enrich is rapidly switching on and off, which is a consequence of running MAPdot based accel when your MAP signal has Tourette Syndrome. Where is your vac line to the MS sourced? If it's not already teed off the fuel pressure regulator, try that first and see if it helps.
"on the TB" ≠ "teed off the FPR"
tee it off the FPR, it should help in dapening the MAP signal so it will not spike and throw it into trying to add extra fuel
I believe I have the problem fixed now. Tee'd of the FPR helped but did'nt completely cure it. After some reading I put a fuel filter in the map line and know the car seems much smoother and I can't reproduce the problem. Gonna record some logs and see if my map readings look smoother as well.
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Sep 5, 2015 08:02 AM








